Pterourus bjorkae

The identification of Pterourus bjorkae emerged from studies of the Pterourus glaucus complex in southern New England, United States. Researchers observed distinct phenotypic differences in early spring populations, leading to the classification of this univoltine (single-brooded) taxon as a separate species. The holotype (female) and allotype (male) specimens of Pterourus bjorkae are deposited at the McGuire Center for Lepidoptera and Biodiversity in Gainesville, Florida. == Appearance ==

Pterourus bjorkae is notable for its large size, with an average wingspan of approximately 8.5 centimeters, making it the largest subspecies within its complex. The butterfly exhibits a striking yellow coloration adorned with dark patterns and orange spots. Its caterpillar stage resembles a small snake, a form of mimicry that may deter some predators. Adults are commonly found at flower gardens. == Habitat ==

Pterourus bjorkae primarily inhabits deciduous forests in the eastern regions of North America. Its presence in these ecosystems contributes to the biodiversity and ecological complexity of the area. ==See also==